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RELEASE NOTES

Migration Information

This version removes support for direct migration from versions before v8.1.0 (Doris)

See migration path for instructions how to migrate to a major version.

Do not upgrade from minimal to minimal version. It will most likely fail at some point and will require flashing via serial. If you do have to use minimal versions, always OTA to a full version of the same release before applying next minimal version.

Pay attention to the following version breaks due to dynamic settings updates:

  1. Migrate to Sonoff-Tasmota 3.9.x
  2. Migrate to Sonoff-Tasmota 4.x
  3. Migrate to Sonoff-Tasmota 5.14 (http://ota.tasmota.com/tasmota/release_5.14.0/sonoff.bin) - NOTICE underscore as a dash is not supported in older versions
  4. Migrate to Sonoff-Tasmota 6.7.1 (http://ota.tasmota.com/tasmota/release_6.7.1/sonoff.bin) - NOTICE underscore as a dash is not supported in older versions
  5. Migrate to Tasmota 7.2.0 (http://ota.tasmota.com/tasmota/release-7.2.0/tasmota.bin)

--- Major change in parameter storage layout ---

  1. Migrate to Tasmota 8.5.1 (http://ota.tasmota.com/tasmota/release-8.5.1/tasmota.bin)

--- Major change in internal GPIO function representation ---

  1. Migrate to Tasmota 9.1 (http://ota.tasmota.com/tasmota/release-9.1.0/tasmota.bin.gz)
  2. Upgrade to latest release (http://ota.tasmota.com/tasmota/release/tasmota.bin.gz)

While fallback or downgrading is common practice it was never supported due to Settings additions or changes in newer releases. Starting with release v9.1.0 Imogen the internal GPIO function representation has changed in such a way that fallback is only possible to the latest GPIO configuration before installing v9.1.0.

Supported Core versions

This release will be supported from ESP8266/Arduino library Core version 2.7.7 due to reported security and stability issues on previous Core version. This will also support gzipped binaries.

This release will be supported from ESP32/Arduino library Core version 3.0.4.

Support of ESP8266 Core versions before 2.7.7 and ESP32 Core versions before 3.0.4 have been removed.

Known issues with v14.1.0

Due to the change from ESP32 Arduino Core2/IDF4 to Arduino Core3/IDF5 not all functionality has been restored. The following features are known not to work on ESP32:

Support of TLS

In addition to TLS using fingerprints now also user supplied CA certs, AWS IoT and Azure IoT is supported. Read full documentation

Initial configuration tools

For initial configuration this release supports Webserver based WifiManager or Serial based command interface.

Initial installation

Easy initial installation of Tasmota can be performed using the Tasmota WebInstaller.

Provided Binary Downloads

ESP8266 or ESP8285 based

The following binary downloads have been compiled with ESP8266/Arduino library core version 2.7.7.

  • tasmota.bin = The Tasmota version with most drivers for 1M+ flash. RECOMMENDED RELEASE BINARY
  • tasmota-4M.bin = The Tasmota version with most drivers and filesystem for 4M+ flash.
  • tasmota-AD.bin to tasmota-VN.bin = The Tasmota version in different languages for 1M+ flash.
  • tasmota-lite.bin = The Lite version without most drivers and sensors for 1M+ flash.
  • tasmota-knx.bin = The Knx version without some features but adds KNX support for 1M+ flash.
  • tasmota-sensors.bin = The Sensors version adds more useful sensors for 1M+ flash.
  • tasmota-ir.bin = The InfraRed Receiver and transmitter version allowing all available protocols provided by library IRremoteESP8266 but without most other features for 1M+ flash.
  • tasmota-display.bin = The Display version without Energy Monitoring but adds display support for 1M+ flash.
  • tasmota-zbbridge.bin = The dedicated Sonoff Zigbee Bridge version for 2M+ flash.
  • tasmota-zigbee.bin = The dedicated cc25xx Zigbee Bridge version for 4M+ flash.

Above binaries are also available as gzipped version allowing faster uploads.

Latest released binaries can be downloaded from

Historical binaries can be downloaded from

The latter links can be used for OTA upgrades too like OtaUrl http://ota.tasmota.com/tasmota/release/tasmota.bin.gz

ESP32, ESP32-C2, ESP32-C3, ESP32-C6, ESP32-S2 and ESP32-S3 based

The following binary downloads have been compiled with ESP32/Arduino library core version 3.0.4.

  • tasmota32.bin = The Tasmota version with most drivers including additional sensors and KNX for 4M+ flash. RECOMMENDED RELEASE BINARY
  • tasmota32solo1.bin = The Tasmota version with most drivers including additional sensors and KNX for single core ESP32 and 4M+ flash.
  • tasmota32s2.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-S2 with serial and 4M+ flash.
  • tasmota32s2cdc.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-S2 with serial over embedded USB CDC only and 4M+ flash.
  • tasmota32s3.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-S3 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32c2.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C2 with serial and 4M+ flash.
  • tasmota32c3.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C2 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32c6.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C6 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32-AD.bin to tasmota32-VN.bin = The Tasmota version in different languages for 4M+ flash.
  • tasmota32-bluetooth.bin = The Bluetooth version adds BLE support for 4M+ flash.
  • tasmota32-display.bin = The Display version without Energy Monitoring but adds display support for 4M+ flash.
  • tasmota32-ir.bin = The InfraRed Receiver and transmitter version allowing all available protocols provided by library IRremoteESP8266 but without most other features for 4M+ flash.
  • tasmota32-lvgl.bin = The LVGL version adds Light and Versatile Graphics Library (LVGL) display support for 4M+ flash.
  • tasmota32-nspanel.bin = The Sonoff NSPanel Smart Scene Wall Switch version with HASPmota display support.
  • tasmota32-webcam.bin = The Webcam version adds webcam support for 4M+ flash.
  • tasmota32-zbbridgepro.bin - The Sonoff Zigbee Bridge Pro version with CC2652P firmware load support.

Latest released binaries can be downloaded from

Historical binaries can be downloaded from

The latter links can be used for OTA upgrades too like OtaUrl https://ota.tasmota.com/tasmota32/release/tasmota32.bin

Additional information

List of embedded modules.

Complete list of available feature and sensors.

Changelog v14.2.0.3

Added

  • Command SetOption69 1 to enable Serial Bridge inverted Receive #22000
  • Energy command PowerSet 60,230 to calibrate both Current and Power with known resistive load of 60W at 230V using calibrated Voltage
  • Energy command CurrentSet 60,230 to calibrate both Power and Current with known resistive load of 60W at 230V using calibrated Voltage
  • Energy Log level 4 message when (Calculated) Apparent Power is less than Active Power indicating wrong calibration #20653

Breaking Changed

Changed

  • ESP32 platform update from 2024.08.10 to 2024.08.11 #22021
  • GPIOViewer from v1.5.5 to v1.5.6
  • Energy BL09xx command CurrentSet input changed from Ampere to milliAmpere
  • Energy force Apparent Power equals Active Power when (Calculated) Apparent Power is less than Active Power #20653

Fixed

  • Energy calculation #20653
  • Shutter timing registers overflow #21966
  • PZEM continue energy monitoring when one phase fails #21968
  • BearSSL panic on ESP8266 in rare conditions #22017
  • Zigbee extend timeout for MCU reboot from 5s to 10s #22009
  • Matter fixed UI bug when no endpoints configured #22008
  • Matter fix when Rules are disabled #22016

Removed

  • ESP8266 Analog input support using energy driver as only one channel is available